1. HOW IS WATER ESSENTIAL TO LIFE?

2. FACTS ABOUT WATER What percent of the planet is water? What percent of the planet is water? How much is fresh water? How much is fresh water? Where is most of the fresh water? Where is most of the fresh water? 25% of the worlds drinking water comes from this lake. 25% of the worlds drinking water comes from this lake. How many oceans are there? How many oceans are there? What are the names of the oceans? What are the names of the oceans? What percent of your body is water? What percent of your body is water? ~ 75% ~ 75% 3% 3% Icebergs Icebergs Great Lakes Great Lakes One One Atlantic, Pacific, Indian, Arctic, Antarctic Atlantic, Pacific, Indian, Arctic, Antarctic ~70% ~70%

3. OCEANS OF OUR PLANET

4. WHAT DOES THE OCEAN FLOOR LOOK LIKE? Continental shelf: The extended perimeter of each continent Continental shelf: The extended perimeter of each continent Continental Slope: Point of increasing slope at end of continental shelf Continental Slope: Point of increasing slope at end of continental shelf Trench: Long narrow ditch Trench: Long narrow ditch Ocean Floor: Bottom of ocean Ocean Floor: Bottom of ocean Ridge: Underwater mountain range Ridge: Underwater mountain range

5. WHAT ARE HYDROTHERMAL VENTS? HYDROTHERMAL

6. HOW DO WE EXPLORE THE OCEANS? Sonar: Using sound waves Sonar: Using sound waves Alvin: First deep sea submersible able to carry passengers (1964) can now dive to 14,764 ft. Alvin: First deep sea submersible able to carry passengers (1964) can now dive to 14,764 ft. Jason Jr: Submersible robot that explored the Titanic Jason Jr: Submersible robot that explored the Titanic